Why does multiplying an even amount of negative numbers make a positive result?

Question

I.e., (-2)*1=-2 but (-2)*(-1)=2

In: Mathematics

Answer 1

When you multiply by a negative number, that’s like turning around 180 degrees. If you multiply by two negative numbers, you turn around 180 degrees twice, which is 360 degrees. If you multiply by 4 or 6 or 8 negative numbers, you’re just turning around 360 degrees multiple times, but end up facing the same way.